\documentclass{article}
\usepackage[x11names, rgb]{xcolor}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{snakes,arrows,shapes}
\usepackage{amsmath}
%
%

%

%

\begin{document}
\pagestyle{empty}
%
%
%

\enlargethispage{100cm}
% Start of code
% \begin{tikzpicture}[anchor=mid,>=latex',line join=bevel,]
\begin{tikzpicture}[>=latex',line join=bevel,]
  \pgfsetlinewidth{1bp}
%%
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (63bp,17bp) node {$C_2$};
\end{scope}
  \pgfsetcolor{black}
  % Edge: LOBBY -> MLAV
  \definecolor{newcol}{rgb}{0.0,1.0,0.0};
  \pgfsetcolor{newcol}
  \draw [->] (72bp,107bp) .. controls (76bp,98bp) and (81bp,88bp)  .. (90bp,69bp);
  % Edge: LOBBY -> FLAV
  \pgfsetcolor{black}
  \draw [] (54bp,107bp) .. controls (49bp,95bp) and (41bp,81bp)  .. (36bp,69bp);
  % Node: MLAV
\begin{scope}
  \definecolor{strokecol}{rgb}{0.0,1.0,0.0};
  \pgfsetstrokecolor{strokecol}
  \draw (99bp,52bp) ellipse (27bp and 18bp);
  \pgfsetstrokecolor{black}
  \draw (99bp,52bp) node {M\ LAV};
\end{scope}
  % Node: FLAV
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (27bp,52bp) ellipse (27bp and 18bp);
  \draw (27bp,52bp) node {F\ LAV};
\end{scope}
  % Node: LOBBY
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (63bp,124bp) ellipse (30bp and 18bp);
  \draw (63bp,124bp) node {$LOBBY$};
\end{scope}
%
\end{tikzpicture}
% End of code

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\end{document}
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